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arXiv · 1806.10507

Massive Unimodular Gravity

Enrique Alvarez·Jesus Anero·Guillermo Milans del Bosch·Raquel Santos-Garcia
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Abstract

A ghost free massive deformation of unimodular gravity (UG), in the spirit of {\em mimetic massive gravity}, is shown to exist. This construction avoids the no-go theorem for a Fierz-Pauli type of mass term in UG by giving up on Lorentz invariance. In our framework, the mimetic degree of freedom vanishes on-shell.

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Enrique Alvarez, Jesus Anero, Guillermo Milans del Bosch, Raquel Santos-Garcia. 2020-05-31. Massive Unimodular Gravity. https://doi.org/10.1088/1361-6382%2Fab9319

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